CN105383155A - Screen printing apparatus and screen printing method - Google Patents
Screen printing apparatus and screen printing method Download PDFInfo
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- CN105383155A CN105383155A CN201510551184.5A CN201510551184A CN105383155A CN 105383155 A CN105383155 A CN 105383155A CN 201510551184 A CN201510551184 A CN 201510551184A CN 105383155 A CN105383155 A CN 105383155A
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- Prior art keywords
- paste
- mask plate
- scraper plate
- plate
- panel seat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/40—Inking units
- B41F15/42—Inking units comprising squeegees or doctors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/08—Machines
- B41F15/0881—Machines for printing on polyhedral articles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Screen Printers (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
- Printing Methods (AREA)
- Manufacturing Of Printed Wiring (AREA)
Abstract
The invention provides a screen printing apparatus and a screen printing method capable of supplying paste onto a mask plate while preventing reduction in productivity. A screen printing apparatus includes: a mask plate (16) having a pattern hole (16a) formed according to an arrangement of an electrode of a board (2); a squeegee base (19) that moves along a first horizontal direction above the mask plate (16); a squeegee (22) that is held by the squeegee base (19), and prints paste (3) through the pattern hole onto the board (2) abutting on a lower surface of the mask plate (16) by moving together with the squeegee base (19) and sliding on the mask plate (16) in a squeegeeing direction along the first horizontal direction; and a paste supplying portion (26) that moves together with the squeegee base (19) and supplies the paste (3) to the mask plate (16). The paste supplying portion (26) supplies the paste (3) to the mask plate (16) while the squeegee (22) is sliding on the mask plate (16).
Description
Technical field
The present invention relates to silk-screen printing device and the method for printing screen of the paste such as printed solder paste and conductive paste on substrate.
Background technology
Following silk-screen printing device is there will be a known in electronic unit installing area, substrate is abutted with the lower surface of mask plate, scraper plate is made to slide on mask plate in this condition, be printed on substrate by paste such as solder(ing) pastes thus, the configuration of the electrode according to substrate on described mask plate is formed with pattern hole.The paste be supplied on mask plate reduces gradually along with repeatedly carrying out printing action.Therefore, proposed the method (for example, referring to patent document 1) supplying paste on mask plate in the past.
In the example shown in patent document 1, supply syringe (paste supply unit) keeping the paste installed for storing paste on panel seat of scraping of scraper plate.When remaining in the paste on mask plate and reducing to fixed amount, paste supply syringe is made to move to the top of the slip starting position of scraper plate and a sidepiece of mask plate together with scraper plate, the paste of the sidepiece ejection necessary amount in this position from the ejiction opening of paste supply syringe towards mask plate.
[prior art document]
[patent document]
[patent document 1] Japanese Unexamined Patent Publication 2013-233673 publication
Summary of the invention
But, in the prior art comprising patent document 1, during the supply operation carrying out paste, do not make scraper plate slide, thus print action and interrupt, so there is the problem of productivity reduction.Further, during the supply operation carrying out paste, the old paste remained on mask plate remains static and solidifies gradually.In addition, the paste again supplied on mask plate is the state being stored in syringe before this, thus has the tendency that viscosity is higher.The paste of viscosity higher (namely harder) is not easily filled in the pattern hole of minute diameter, becomes and produces the bad reason of printing.Therefore, in the prior art, before restarting printing action, need that scraper plate is moved back and forth and stir new and old paste for several times.Therefore, can not start rapidly to print action after the supply operation terminating paste, there is the problem causing productivity to reduce further.
Therefore, the object of the invention is to, provide and can prevent productive reduction, the silk-screen printing device supplying paste on mask plate and method for printing screen.
Silk-screen printing device of the present invention has: mask plate, and the configuration according to the electrode of substrate is formed with pattern hole; Scrape panel seat, move along the first horizontal direction above described mask plate; Scraper plate, panel seat is scraped described in being held in, move with described scraping together with panel seat, and slide to the direction that scrapes along described first horizontal direction on described mask plate, on the substrate abutted with the lower surface of described mask plate, print paste via described pattern hole thus; And paste supply unit, move with described scraping together with panel seat, to described mask plate supply paste, while described scraper plate slides on described mask plate, paste supply unit is to described mask plate supply paste.
Method for printing screen of the present invention prints paste by scraper plate on substrate, this scraper plate is held in scrapes panel seat, this is scraped panel seat and moves along the first horizontal direction above mask plate, the configuration of the electrode according to substrate on this mask plate is formed with pattern hole, the feature of described method for printing screen is, comprise: substrate contact step, substrate is abutted with the lower surface of described mask plate; And printing process, to move together with panel seat by described scraper plate with described scraping and to slide to the direction that scrapes along described first horizontal direction on described mask plate, on the substrate abutted with the lower surface of described mask plate, paste is printed via described pattern hole, in described printing process, while described scraper plate slides on described mask plate, scrape the paste supply unit of movement together with panel seat and supply paste from described to described mask plate.
According to the present invention, productive reduction can be prevented, mask plate supplies paste.
Accompanying drawing explanation
Fig. 1 is the side view of the silk-screen printing device of one embodiment of the present invention.
Fig. 2 is the top view of the silk-screen printing device of one embodiment of the present invention.
Fig. 3 is the structure key diagram of the paste supply unit that has of the silk-screen printing device of one embodiment of the present invention and paste supply mobile unit.
(a) (b) of Fig. 4 is the structure key diagram of the paste supply unit that the silk-screen printing device of one embodiment of the present invention has.
(a) (b) (c) of Fig. 5 is the structure key diagram of the sensor unit that slurry residuals that the silk-screen printing device of one embodiment of the present invention has detects.
Fig. 6 is the structure key diagram of the sensor unit of the slurry residuals detection that the silk-screen printing device of one embodiment of the present invention has.
Fig. 7 is the block diagram of the structure of the control system of the silk-screen printing device representing one embodiment of the present invention.
Fig. 8 is the flow chart of the method for printing screen of one embodiment of the present invention.
(a) (b) (c) of Fig. 9 is the action specification figure of the method for printing screen of one embodiment of the present invention.
Figure 10 is the flow chart of the paste supply process of one embodiment of the present invention.
(a) (b) (c) (d) of Figure 11 is the action specification figure of the paste replenishment operation of one embodiment of the present invention.
(a) (b) (c) (d) of Figure 12 is the action specification figure of the paste replenishment operation of one embodiment of the present invention.
(a) (b) of Figure 13 is the action specification figure of the paste replenishment operation of another embodiment of the present invention.
Detailed description of the invention
First, the silk-screen printing device 1 of embodiments of the present invention is described with reference to Fig. 1.Silk-screen printing device 1 has the function of printing paste 3 at the electrode 2a (Fig. 2) being formed at substrate 2, comprises board positioning part 4 and paste Printing Department 5 and forms.About paste 3, such as, can enumerate the viscoid such as solder(ing) paste and conductive paste., the direction of transfer of substrate 2 is defined as X-direction (the second horizontal direction) below, direction vertical with X-direction in horizontal plane is defined as Y-direction (the first horizontal direction).Further, the direction with XY plane orthogonal is defined as Z-direction.In addition, be defined as on the left of the paper of Fig. 1 in " front ", will be defined as on the right side of paper at " rear ".As shown in Figure 2, when operator OP carries out the maintenance activity supplemented comprising paste 3, from front close to silk-screen printing device 1.
The following describes board positioning part 4.Pedestal 6 is provided with Y-axis platform 7a, X-axis platform 7b and θ pillow block 7c with the stacked state.Y-axis platform 7a makes X-axis platform 7b move along the Y direction, and X-axis platform 7b makes θ pillow block 7c move along the X direction.Flat basic platform 8 with Z-direction be axle center horizontally rotate be arranged on θ pillow block 7c freely upper surface on.θ pillow block 7c makes basic platform 8 horizontally rotate.
Above basic platform 8 according to from top to bottom be sequentially with the first lifting platform 9, second lifting platform 10.First lifting platform 9 is elevated relative to basic platform 8 by the driving of the first elevating motor 9a.Second lifting platform 10 is elevated relative to the first lifting platform 9 by the driving of the second elevating motor 10a.
A pair conveyer support component 11 is extended upward from through second lifting platform 10 of the first lifting platform 9.A pair conveyer support component 11 supports a pair conveyer 12 in the face of Y-direction configuration.As shown in Figure 2, conveyer 12 extends in X direction, transmits substrate 2 in X direction and is positioned preposition.
In FIG, at the upper surface of the second lifting platform 10, the position between a pair conveyer support component 11 is provided with substrate support 13.Substrate support 13 is risen together with the second lifting platform 10 by the driving of the second elevating motor 10a, supports the substrate 2 on conveyer 12 thus.
A pair clamping part 14 is provided with above conveyer 12.A clamping part 14 (on the right side of the paper of Fig. 1) is combined with the cylinder bar of the first cylinder 15.By driving the first cylinder 15 to make cylinder bar stretch, a clamping part 14 moves relative to another clamping part 14 (on the left of the paper of Fig. 1) along the Y direction.Thus, a pair clamping part 14 clamps and keeps rising to the substrate 2 of predetermined clamped position.
Under the state keeping substrate 2 by clamping part 14, drive Y-axis platform 7a, X-axis platform 7b, θ pillow block 7c, substrate 2 is located in horizontal plane thus.Then, substrate support 13 is risen together with the first lifting platform 9 by the driving of the first elevating motor 9a, and substrate 2 abuts with the lower surface of mask plate 16 described later thus.
The following describes paste Printing Department 5.The mask plate 16 that the top that paste Printing Department 5 is configured to be included in board positioning part 4 is arranged and the squeegee unit 17 arranged in the more top of mask plate 16.Mask plate 16 is parts of the rectangular flat shape along the expansion of XY plane, is kept by the mask holder 18 of frame-shaped.This mask plate 16 is formed with the configuration of electrode 2a according to substrate 2 and multiple pattern hole 16a of through above-below direction.Further, mask plate 16 supplies paste 3.
In Fig. 1 and Fig. 3, squeegee unit 17 is configured to comprise a pair scraper stent 21, a pair scraper plate 22 be maintained on scraper stent 21 scraping panel seat 19, be maintained at a pair scraping plate elevating mechanism 20 scraped on panel seat 19, be combined with the cylinder bar 20a extended out from the below of scraping plate elevating mechanism 20.A pair scraper plate 22, in tabular, is in respectively with towards scraping posture that direction tilts, being maintained at the state of scraping on panel seat 19 by scraping plate elevating mechanism 20 and scraper stent 21.By driving scraping plate elevating mechanism 20, a pair scraper plate 22 is elevated independently.Below, the scraper plate being configured in front side is called " the first scraper plate 22a ", the scraper plate being configured in rear side is called " the second scraper plate 22b ".Be called " scraper plate 22 " when not needing differentiation two scraper plates.
In fig. 1 and 2, squeegee unit 17 is moved freely along the Y direction by unit travel mechanism 23.Unit travel mechanism 23 has a pair ball-screw 24 extended along Y-direction and the first drive motor 25 driving ball-screw 24 to rotate.As shown in Figure 2, a pair ball-screw 24 screws at the both ends of scraping panel seat 19.By driving the first drive motor 25 to make ball-screw 24 positive and negative rotation, scrape panel seat 19 thus mobile along the first horizontal direction (Y-direction) above mask plate 16.
By driving the first drive motor 25 under the state making scraper plate 22 contact with mask plate 16, scraper plate 22 moves along the Y direction with scraping together with panel seat 19.Thus, scraper plate 22 slides along scraping direction on mask plate 16, to be printed on by paste 3 on the substrate 2 abutted with the lower surface of mask plate 16 via pattern hole 16a.Like this, scraper plate 22 moves along the Y direction with scraping together with panel seat 19, and the mask plate 16 being supplied to paste 3 slides along scraping direction, to be printed on by paste 3 on the substrate 2 abutted with the lower surface of mask plate 16 thus via pattern hole 16a.In addition, the direction that scrapes of the first scraper plate 22a is from front to rear (in Fig. 1 on the left of paper to right side), and the direction that scrapes of the second scraper plate 22b is from rear to front (in Fig. 1 on the right side of paper to left side).
In Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the face (front surface) of front side of scraping panel seat 19 is provided with paste supply unit 26.Below, the concrete structure of paste supply unit 26 is described.In Fig. 4 (a), be provided with the second cylinder 28 (such as without cylinder bar cylinder) extended in X direction and the guide member 29 extended in X direction in the below of the second cylinder 28 in flat plate member 27.Second cylinder 28 has the moving body 28a of mobile bulk freely along the X direction, by from the port 28b air feed arranged at the both ends of the second cylinder 28 and exhaust, moving body 28a is moved along the X direction.
Keep the cylinder maintaining part 31 of cylinder 30 to be movably arranged on along the X direction on guide member 29, cylinder maintaining part 31 is also connected with moving body 28a.By driving the second cylinder 28, cylinder maintaining part 31 moves along the X direction together with moving body 28a.
The container of the cylindrical shape that cylinder 30 opens wide based on top, receives paste 3 therein.Paste 3 is in the state be sealed in cylinder 30 by being covered from top by middle cover 30b.Further, the ejiction opening 30a that can spray paste 3 is downwards formed in the bottom of cylinder 30.Ejiction opening 30a observes from the second scraper plate 22b of side configuration in the wings and is positioned at front side.That is, ejiction opening 30a is positioned at and scrapes relative to the second scraper plate 22b the position that direction is the front at the second scraper plate 22b.
In figure 3, cylinder maintaining part 31 is made up of the flat parts of level, is provided with multiple (being two herein) the patchhole 31a that can insert for cylinder 30 in X direction side by side.By making the flange part 30c arranged on the side of cylinder 30 abut with the edge of patchhole 31a, cylinder 30 is remained in cylinder maintaining part 31.Cylinder maintaining part 31 can keep two cylinders 30 in X direction side by side.
As shown in Fig. 3 and Fig. 4 (b), in plate member 27, the position above cylinder maintaining part 31 is provided with the 3rd cylinder 32.Discoideus pad parts 33 are fixed and are bonded in the bottom of the cylinder bar 32a that the 3rd cylinder 32 has.Make the position of the cylinder 30 of the expectation be maintained in cylinder maintaining part 31 and the aligned beneath of pad parts 33, drive the 3rd cylinder 32 in this condition, press down middle cover 30b with pad parts 33, thus pressure is applied to the paste 3 in cylinder 30.Thus, paste 3 is sprayed via ejiction opening 30a to mask plate 16.For convenience's sake, in Fig. 4 (a), eliminate the diagram of the 3rd cylinder 32.
When in a cylinder 30 in two cylinders 30 kept by cylinder maintaining part 31, the residual of the paste 3 of storage disappears, by the second cylinder 28, cylinder maintaining part 31 is slided along the X direction, make the position of another cylinder 30 and the aligned beneath padding parts 33.Thereby, it is possible to the supply object of paste 3 is switched to another cylinder 30.
Like this, paste supply unit 26 is configured to comprise plate member 27, second cylinder 28, guide member 29, cylinder 30, cylinder maintaining part 31, the 3rd cylinder 32 and pad parts 33, and paste supply unit 26 supplies paste 3 with scraping to move on mask plate 16 together with panel seat 19.Further, paste supply unit 26 has towards the ejiction opening 30a scraping the front ejection paste 3 in direction of the second scraper plate 22b.This paste supply unit 26 is positioned at the front side scraping panel seat 19, and thus operator OP can easily change cylinder 30.
Below, the structure for making paste supply unit 26 movement is along the X direction described.In figure 3, the face of front side of scraping panel seat 19 being provided with the ball-screw 35 that walk abreast in X direction a pair guide member 34 of extension and the position between a pair guide member 34 and this guide member 34 extend concurrently in X direction.Ball-screw 35 is drive by the second drive motor 36 (Fig. 2) arranged in the end of scraping panel seat 19 and rotates.Block part 37 is combined on ball-screw 35.By the positive and negative rotation of the ball-screw 35 based on the second drive motor 36, block part 37 moves back and forth in X direction along guide member 34.
Aforesaid plate member 27 is fixed and is bonded on block part 37.Therefore, by driving the second drive motor 36, paste supply unit 26 moves together with block part 37 in X direction along guide member 34.In said structure, form by guide member 34, ball-screw 35, second drive motor 36 and block part 37 the paste supply unit mobile unit making paste supply unit 26 along the second horizontal direction (X-direction) movement.Further, paste supply unit 26 is installed in be scraped on panel seat 19, and scraping panel seat 19 can be moved back and forth along the second horizontal direction (X-direction) vertical with the first horizontal direction (Y-direction) in horizontal plane by paste supply unit mobile unit.Thus, paste supply unit 26 can move along the X direction while supply paste 3 to mask plate 16.
Below, the sensor unit that the residual of the residual of the paste 3 for detecting supply mask plate 16 detects is described with reference to Fig. 5 and Fig. 6.Be provided with sensor unit 38a, 38b in the both side ends of the scraper stent 21 being configured at front side, this sensor unit is positioned at the side scraping direction towards the first scraper plate 22a kept by this scraper stent 21.Sensor unit 38a, 38b are following structure: transmittance section 39a, the light accepting part 39b of formation sensor 39 are fixed on scraper stent 21 respectively by the bracket 40 of bending tabular.Transmittance section 39a, light accepting part 39b are connected (Fig. 6) with the controller 39c forming this sensor 39.In addition, the diagram of sensor unit 38a, 38b is eliminated in figure 3.
Transmittance section 39a and light accepting part 39b is located at the side scraping direction towards the first scraper plate 22a and position facing with each other in the X direction.The inspection cross section 41* be shown by the dashed box in the inspection light 41 transmission plot 5 (c) of the band shape projected from transmittance section 39a in the process received by light accepting part 39b, controller 39c measures the size being arranged in the paste 3 checking cross section 41*.That is, as shown in Figure 6, when when with irradiating width A from the inspection light 41 that transmittance section 39a projects arrive the path of light accepting part 39b have paste 3, light accepting part 39b does not receive the shading width A2 suitable with the size of paste 3, and only receives by optical width A1.Controller 39c, according to the light result of light accepting part 39b, measures the sensor values of one dimension size as numeral of paste 3.In addition, the unit measuring the size of paste 3 is not limited to aforesaid mode, also can adopt various structure.
Below, the structure of control system is described with reference to Fig. 7.The control part 42 that silk-screen printing device 1 has is configured to comprise storage part 43, mechanism drive part 44, paste residual test section 45 and paste supply handling part 46.This control part 42 is connected with Y-axis platform 7a, X-axis platform 7b, θ pillow block 7c, the first elevating motor 9a, the second elevating motor 10a, the first cylinder 15, scraping plate elevating mechanism 20, first drive motor 25, second cylinder 28, the 3rd cylinder 32, second drive motor 36 and sensor 39.
Storage part 43 stores printing operation program for performing serigraphy and printing condition data and paste residual and detects data, paste supply data.Paste residual detection data are the data required for the residual of the measurement result detection paste 3 of sensor 39.Paste supply data are the data performing paste replenishment operation according to the testing result of the residual of paste 3, comprise with for determining whether the information needing the threshold value of supply paste 3 relevant.
Mechanism drive part 44 is controlled by control part 42, drives each mechanism of board positioning part 4 and screen printing department 5.Thus, perform with the substrate 2 transmission operation that is object, positioning operation, presswork.Paste residual test section 45 detects the residual of the paste 3 on mask plate 16 according to the measurement result of sensor 39.
Paste supply handling part 46, according to the testing result of the residual of paste 3, determines whether to need to mask plate 16 supply paste 3.When being judged to need supply paste 3, paste supply handling part 46 controls each mechanism of paste supply unit 26 and paste supply unit mobile unit.Perform paste replenishment operation thus.
The silk-screen printing device 1 of present embodiment forms as mentioned above.Below, with reference to the flow chart of Fig. 8 and the action specification figure of Fig. 9, method for printing screen is described.
First, the n-th plate base 2 is sent to preposition (ST1: substrate transmits operation) by conveyer 12.Then, clamping part 14 keeps the substrate 2 (ST2: substrate keeps operation) rising to predetermined clamped position.Then, substrate 2 is positioned at (ST3: substrate orientation operation) in horizontal plane by board positioning part 4.Thus, the electrode 2a of the substrate 2 and pattern hole 16a of mask plate 16 is consistent in the vertical direction.Then, as shown in Fig. 9 (a), substrate support 13 rises, and (arrow a), makes substrate 2 abut with the lower surface of mask plate 16 (ST4: substrate contact step) thus.
Then, the printing (ST5: printing process) of paste 3 is carried out.That is, as shown in Fig. 9 (b), make under the state of scraping panel seat 19 forwards movement, the first scraper plate 22a declines (arrow b) relative to mask plate 16.Then, as shown in Fig. 9 (c), under the state that the first scraper plate 22a abuts with mask plate 16, scrape panel seat 19 and move from front towards rear (arrow c).Thus, the first scraper plate 22a slides on mask plate 16, and the paste 3 be pre-provisioning on mask plate 16 is printed on the electrode 2a of substrate 2 via pattern hole 16a.Namely at (ST5), scraper plate 22 to move along the first horizontal direction together with panel seat 19 and to slide to the direction that scrapes along the first horizontal direction on mask plate 16 with scraping, and to be printed on by paste 3 on the substrate 2 abutted with the lower surface of mask plate 16 thus via pattern hole 16a.Then, the first scraper plate 22a rises.
Be printed on a substrate 2 at paste 3, carry out spreading out of (ST6: first substrate spreads out of operation) of substrate 2.That is, substrate support 13 declines, and makes substrate 2 leave from mask plate 16 thus.Further, after the maintenance removing clamping part 14 pairs of substrates 2, substrate 2 is sent to and spreads out of position by conveyer 12.Then, substrate 2 is spread out of by from silk-screen printing device 1.
When having spread out of the substrate 2 of n-th, turn back to (ST1), the substrate 2 of (n+1)th is sent to preposition by conveyer 12.After, again perform each operation aforesaid.In addition, when use second scraper plate 22b prints paste 3, the second scraper plate 22b is declined and contact mask plate 16.Then, the second scraper plate 22b is made to slide toward the front from rear in this condition.
Below, the flow chart with reference to Figure 10 illustrates the paste supply process be used for mask plate 16 supply paste 3.First, the predetermined timing during the first scraper plate 22a is from front towards rear slide, sensor 39 measures the size (ST11: paste measures operation) of the paste 3 on mask plate 16.By the front and back that the timing setting measured passes through at position [P] (Fig. 9 (c)) corresponding with the center in the horizontal plane of substrate 2 at such as the first scraper plate 22a.Then, control part 42 (paste residual test section 45) detects the residual (ST12: paste residual detects operation) of paste 3 according to measurement result.
Then, whether below predetermined value (ST13: paste residual judges operation) control part 42 (paste supply handling part 46), according to the testing result of the residual of paste 3, judges the residual of paste 3.When being judged to be that the residual of paste 3 is not below predetermined value, paste supply process terminates.Further, when being judged to be that the residual of paste 3 is below predetermined value, during the second scraper plate 22b slides, paste supply unit 26 supplies paste 3 (ST14: paste supply step) to mask plate 16.
Below, the concrete supply action of paste 3 is described with reference to Figure 11 and Figure 12.(a), (b), (c), (d) of (a), (b), (c) of Figure 12, (d) and Figure 11 are corresponding, are the figure of top view mask plate 16.Figure 11 (a), Figure 12 (a) represent that the second scraper plate 22b contacted with mask plate 16 is about to start the state before sliding, and now paste supply unit 26 is arranged in an end (being positioned on the upside of paper at Figure 12 (a)) in advance.
Predetermined timing after the second scraper plate 22b beginning from the state shown in Figure 11 (a), Figure 12 (a) is slided from the rear to the front, paste supply unit 26 is mobile along the X direction while spray paste 3 (Figure 11 (b) → Figure 11 (c)) from the ejiction opening 30a of cylinder 30.That is, at printing process (ST5), while scraper plate 22 (the second scraper plate 22b) slides on mask plate 16, paste supply unit 26 moves along the second horizontal direction (X-direction) and supplies paste 3 to mask plate 16.So in the present embodiment, paste 3 is parallel to the printing of substrate 2 and paste 3 to the supply of mask plate 16 carries out.
Thus, as shown in Figure 12 (b), (c), from ejiction opening 30a spray new paste 3a along inclined direction (with the first scraper plate 22b scrape vertical direction, direction) supply on mask plate 16.The new paste 3a supplied on mask plate 16 via ejiction opening 30a is held together together by the second scraper plate 22b slided on mask plate 16, and mixes with the old paste 3 remained on mask plate 16.Then, as shown in Figure 11 (d), Figure 12 (d), move to the arbitrary timing in front at the second scraper plate 22b, paste supply unit 26 stops the supply of paste 3.
By supplying paste 3 according to aforesaid mode, action effect as described below can be obtained.First, do not need to stop printing action (in other words the slip of scraper plate 22) in order to supply paste 3, productive reduction can be suppressed.Further, paste supply unit 26, along moving while supply paste 3 with the vertical X-direction in direction that scrapes of the second scraper plate 22b, can disperse paste 3 along the long side direction of the second scraper plate 22b thus equably.In addition, the new paste 3a supplied on mask plate 16 accepts stirring by the slip of the second scraper plate 22b, and mixes with the old paste 3 of Fusion Strain, and this paste 3a thus can be made to merge as early as possible.Ground related to this, does not need that scraper plate 22 is moved back and forth and stirs new and old paste 3 to merge, thus can suppress productive further reduction before beginning serigraphy.
In addition, paste supply unit 26 also can repeatedly paste 3 ejection and stop movement on one side.Further, the timing that paste supply starts also can be before the second scraper plate 22b starts to slide.In addition, paste supply unit 26 also can move back and forth and supply paste 3.In a word, as long as supply paste 3 by paste supply unit 26 during the second scraper plate 22b slides.
Below, with reference to Figure 13, another embodiment is described.Under Figure 13 (a) represents the state abutted at the lower surface making substrate 2 with mask plate 16, locating the state of the ejiction opening 30a that paste supply unit 26 has near the line CL of Y-direction by the center in the horizontal plane of substrate 2.In this condition, as shown in Figure 13 (b), while scraper plate 22 (the second scraper plate 22b) slides (arrow f) on mask plate 16, paste supply unit 26 supplies paste 3 to mask plate 16.That is, in this embodiment, paste 3 is supplied when not making paste supply unit 26 move along the X direction, the paste 3a that on online CL, supply is new.Further, the new paste 3a be supplied on mask plate 16 is held together together by the second scraper plate 22b, and is slowly expanded (arrow e) along long side direction.That is, even supply paste 3 according to this mode, also can expect the effect that new paste 3a disperses along the long side direction of the second scraper plate 22b, and can not be detained near online CL.
Silk-screen printing device of the present invention and method for printing screen are not limited to present embodiment, can change in the scope of purport not departing from invention.Such as, also sensor unit can be set at the second scraper plate 22b, determine whether to need supply paste according to the measurement result of this sensor unit.In this case, during making the first scraper plate 22a from front towards rear slide, then making the second scraper plate 22b slide toward the front from rear, paste 3 is supplied.Further, as long as paste supply unit 26 can supply the structure of paste 3 to mask plate 16, such as, also the syringe having received paste 3 can be used as paste supply unit 26.
Utilizability in industry
According to the present invention, productive reduction can be reduced, on mask plate, supply paste, can apply in electronic unit installing area.
Claims (6)
1. a silk-screen printing device, is characterized in that, has:
Mask plate, the configuration according to the electrode of substrate is formed with pattern hole;
Scrape panel seat, move along the first horizontal direction above described mask plate;
Scraper plate, panel seat is scraped described in being held in, move with described scraping together with panel seat, and slide to the direction that scrapes along described first horizontal direction on described mask plate, on the substrate abutted with the lower surface of described mask plate, print paste via described pattern hole thus; And
Paste supply unit, moves with described scraping together with panel seat, to described mask plate supply paste,
While described scraper plate slides on described mask plate, paste supply unit is to described mask plate supply paste.
2. silk-screen printing device according to claim 1, is characterized in that,
Described paste supply unit is scraped on panel seat described in being arranged in the mode that can move back and forth along the second horizontal direction vertical with described first horizontal direction in horizontal plane,
While described scraper plate slides on described mask plate, described paste supply unit moves while to described mask plate supply paste along described second horizontal direction.
3. silk-screen printing device according to claim 1 and 2, is characterized in that,
Described paste supply unit has ejiction opening, scrapes the front ejection paste towards described scraper plate on direction described in this ejiction opening slides at described scraper plate,
The paste being supplied to described mask plate via described ejiction opening is held together together by the described scraper plate slided on described mask plate.
4. a method for printing screen, on substrate, paste is printed by scraper plate, this scraper plate is held in scrapes panel seat, this is scraped panel seat and moves along the first horizontal direction above mask plate, the configuration of the electrode according to substrate on this mask plate is formed with pattern hole, the feature of described method for printing screen is, comprising:
Substrate contact step, makes substrate abut with the lower surface of described mask plate; And
Printing process, to be moved together with panel seat by described scraper plate with described scraping and to slide to the direction that scrapes along described first horizontal direction on described mask plate, and on the substrate abutted with the lower surface of described mask plate, printing paste via described pattern hole,
In described printing process, while described scraper plate slides on described mask plate, scrape the paste supply unit of movement together with panel seat and supply paste from described to described mask plate.
5. method for printing screen according to claim 4, is characterized in that,
Described paste supply unit is scraped on panel seat described in being arranged in the mode that can move back and forth along the second horizontal direction vertical with described first horizontal direction in horizontal plane,
In described printing process, scrape on panel seat while movement at described scraper plate described, described paste supply unit moves while to described mask plate supply paste along described second horizontal direction.
6. the method for printing screen according to claim 4 or 5, is characterized in that,
Described paste supply unit has ejiction opening, scrapes the front ejection paste towards described scraper plate on direction described in this ejiction opening slides at described scraper plate,
The paste being supplied to described mask plate via described ejiction opening is held together together by the described scraper plate slided on described mask plate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014176836A JP2016049720A (en) | 2014-09-01 | 2014-09-01 | Screen printing apparatus and screen printing method |
| JP2014-176836 | 2014-09-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105383155A true CN105383155A (en) | 2016-03-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510551184.5A Pending CN105383155A (en) | 2014-09-01 | 2015-09-01 | Screen printing apparatus and screen printing method |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20160059542A1 (en) |
| JP (1) | JP2016049720A (en) |
| CN (1) | CN105383155A (en) |
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| CN107310249A (en) * | 2016-04-27 | 2017-11-03 | 松下知识产权经营株式会社 | Silk-screen printing device and method for printing screen |
| CN111452490A (en) * | 2019-01-22 | 2020-07-28 | 苏州星辰排版印刷有限公司 | Full-automatic screen printing machine capable of automatically adding ink |
| CN112590363A (en) * | 2020-12-04 | 2021-04-02 | 杭州天锋电子有限公司 | Double-sided circuit board printing equipment and printing method |
| CN113771480A (en) * | 2021-08-25 | 2021-12-10 | 浙江爱旭太阳能科技有限公司 | Screen printing machine and solar cell printing method |
| CN115179645A (en) * | 2022-09-06 | 2022-10-14 | 徐州日托光伏科技有限公司 | SMT welding tin cream printing device with automatic feeding function |
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| EP3611020B1 (en) * | 2017-04-14 | 2021-07-07 | Illinois Tool Works Inc. | Automatic solder paste addition apparatus for solder paste printer |
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Also Published As
| Publication number | Publication date |
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| US20160059542A1 (en) | 2016-03-03 |
| JP2016049720A (en) | 2016-04-11 |
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